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-rwxr-xr-xtools/testing/selftests/net/openvswitch/openvswitch.sh370
1 files changed, 345 insertions, 25 deletions
diff --git a/tools/testing/selftests/net/openvswitch/openvswitch.sh b/tools/testing/selftests/net/openvswitch/openvswitch.sh
index 9c2012d70b08..b327d3061ed5 100755
--- a/tools/testing/selftests/net/openvswitch/openvswitch.sh
+++ b/tools/testing/selftests/net/openvswitch/openvswitch.sh
@@ -1,26 +1,62 @@
-#!/bin/sh
+#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# OVS kernel module self tests
+trap ovs_exit_sig EXIT TERM INT ERR
+
# Kselftest framework requirement - SKIP code is 4.
ksft_skip=4
PAUSE_ON_FAIL=no
VERBOSE=0
TRACING=0
+WAIT_TIMEOUT=5
+
+if test "X$KSFT_MACHINE_SLOW" == "Xyes"; then
+ WAIT_TIMEOUT=10
+fi
tests="
arp_ping eth-arp: Basic arp ping between two NS
ct_connect_v4 ip4-ct-xon: Basic ipv4 tcp connection using ct
connect_v4 ip4-xon: Basic ipv4 ping between two NS
nat_connect_v4 ip4-nat-xon: Basic ipv4 tcp connection via NAT
+ nat_related_v4 ip4-nat-related: ICMP related matches work with SNAT
netlink_checks ovsnl: validate netlink attrs and settings
upcall_interfaces ovs: test the upcall interfaces
- drop_reason drop: test drop reasons are emitted"
+ tunnel_metadata ovs: test extraction of tunnel metadata
+ drop_reason drop: test drop reasons are emitted
+ psample psample: Sampling packets with psample"
info() {
- [ $VERBOSE = 0 ] || echo $*
+ [ "${ovs_dir}" != "" ] &&
+ echo "`date +"[%m-%d %H:%M:%S]"` $*" >> ${ovs_dir}/debug.log
+ [ $VERBOSE = 0 ] || echo $*
+}
+
+ovs_wait() {
+ info "waiting $WAIT_TIMEOUT s for: $@"
+
+ if "$@" ; then
+ info "wait succeeded immediately"
+ return 0
+ fi
+
+ # A quick re-check helps speed up small races in fast systems.
+ # However, fractional sleeps might not necessarily work.
+ local start=0
+ sleep 0.1 || { sleep 1; start=1; }
+
+ for (( i=start; i<WAIT_TIMEOUT; i++ )); do
+ if "$@" ; then
+ info "wait succeeded after $i seconds"
+ return 0
+ fi
+ sleep 1
+ done
+ info "wait failed after $i seconds"
+ return 1
}
ovs_base=`pwd`
@@ -62,7 +98,8 @@ ovs_setenv() {
ovs_sbx() {
if test "X$2" != X; then
- (ovs_setenv $1; shift; "$@" >> ${ovs_dir}/debug.log)
+ (ovs_setenv $1; shift;
+ info "run cmd: $@"; "$@" >> ${ovs_dir}/debug.log)
else
ovs_setenv $1
fi
@@ -77,13 +114,13 @@ ovs_add_dp () {
}
ovs_add_if () {
- info "Adding IF to DP: br:$2 if:$3"
- if [ "$4" != "-u" ]; then
- ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" \
- || return 1
+ info "Adding IF to DP: br:$3 if:$4 ($2)"
+ if [ "$5" != "-u" ]; then
+ ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if \
+ -t "$2" "$3" "$4" || return 1
else
python3 $ovs_base/ovs-dpctl.py add-if \
- -u "$2" "$3" >$ovs_dir/$3.out 2>$ovs_dir/$3.err &
+ -u -t "$2" "$3" "$4" >$ovs_dir/$4.out 2>$ovs_dir/$4.err &
pid=$!
on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null"
fi
@@ -99,12 +136,21 @@ ovs_netns_spawn_daemon() {
shift
netns=$1
shift
- info "spawning cmd: $*"
- ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr &
+ if [ "$netns" == "_default" ]; then
+ $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr &
+ else
+ ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr &
+ fi
pid=$!
ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null"
}
+ovs_spawn_daemon() {
+ sbx=$1
+ shift
+ ovs_netns_spawn_daemon $sbx "_default" $*
+}
+
ovs_add_netns_and_veths () {
info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}"
ovs_sbx "$1" ip netns add "$3" || return 1
@@ -121,13 +167,15 @@ ovs_add_netns_and_veths () {
fi
if [ "$7" != "-u" ]; then
- ovs_add_if "$1" "$2" "$4" || return 1
+ ovs_add_if "$1" "netdev" "$2" "$4" || return 1
else
- ovs_add_if "$1" "$2" "$4" -u || return 1
+ ovs_add_if "$1" "netdev" "$2" "$4" -u || return 1
fi
- [ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$ns" \
- tcpdump -i any -s 65535
+ if [ $TRACING -eq 1 ]; then
+ ovs_netns_spawn_daemon "$1" "$3" tcpdump -l -i any -s 6553
+ ovs_wait grep -q "listening on any" ${ovs_dir}/stderr
+ fi
return 0
}
@@ -136,12 +184,18 @@ ovs_add_flow () {
info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4"
ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4"
if [ $? -ne 0 ]; then
- echo "Flow [ $3 : $4 ] failed" >> ${ovs_dir}/debug.log
+ info "Flow [ $3 : $4 ] failed"
return 1
fi
return 0
}
+ovs_del_flows () {
+ info "Deleting all flows from DP: sbx:$1 br:$2"
+ ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-flows "$2"
+ return 0
+}
+
ovs_drop_record_and_run () {
local sbx=$1
shift
@@ -161,6 +215,19 @@ ovs_drop_reason_count()
return `echo "$perf_output" | grep "$pattern" | wc -l`
}
+ovs_test_flow_fails () {
+ ERR_MSG="Flow actions may not be safe on all matching packets"
+
+ PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
+ ovs_add_flow $@ &> /dev/null $@ && return 1
+ POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
+
+ if [ "$PRE_TEST" == "$POST_TEST" ]; then
+ return 1
+ fi
+ return 0
+}
+
usage() {
echo
echo "$0 [OPTIONS] [TEST]..."
@@ -175,10 +242,100 @@ usage() {
exit 1
}
+
+# psample test
+# - use psample to observe packets
+test_psample() {
+ sbx_add "test_psample" || return $?
+
+ # Add a datapath with per-vport dispatching.
+ ovs_add_dp "test_psample" psample -V 2:1 || return 1
+
+ info "create namespaces"
+ ovs_add_netns_and_veths "test_psample" "psample" \
+ client c0 c1 172.31.110.10/24 -u || return 1
+ ovs_add_netns_and_veths "test_psample" "psample" \
+ server s0 s1 172.31.110.20/24 -u || return 1
+
+ # Check if psample actions can be configured.
+ ovs_add_flow "test_psample" psample \
+ 'in_port(1),eth(),eth_type(0x0806),arp()' 'psample(group=1)' &> /dev/null
+ if [ $? == 1 ]; then
+ info "no support for psample - skipping"
+ ovs_exit_sig
+ return $ksft_skip
+ fi
+
+ ovs_del_flows "test_psample" psample
+
+ # Test action verification.
+ OLDIFS=$IFS
+ IFS='*'
+ min_key='in_port(1),eth(),eth_type(0x0800),ipv4()'
+ for testcase in \
+ "cookie to large"*"psample(group=1,cookie=1615141312111009080706050403020100)" \
+ "no group with cookie"*"psample(cookie=abcd)" \
+ "no group"*"psample()";
+ do
+ set -- $testcase;
+ ovs_test_flow_fails "test_psample" psample $min_key $2
+ if [ $? == 1 ]; then
+ info "failed - $1"
+ return 1
+ fi
+ done
+ IFS=$OLDIFS
+
+ ovs_del_flows "test_psample" psample
+ # Allow ARP
+ ovs_add_flow "test_psample" psample \
+ 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
+ ovs_add_flow "test_psample" psample \
+ 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1
+
+ # Sample first 14 bytes of all traffic.
+ ovs_add_flow "test_psample" psample \
+ "in_port(1),eth(),eth_type(0x0800),ipv4()" \
+ "trunc(14),psample(group=1,cookie=c0ffee),2"
+
+ # Sample all traffic. In this case, use a sample() action with both
+ # psample and an upcall emulating simultaneous local sampling and
+ # sFlow / IPFIX.
+ nlpid=$(grep -E "listening on upcall packet handler" \
+ $ovs_dir/s0.out | cut -d ":" -f 2 | tr -d ' ')
+
+ ovs_add_flow "test_psample" psample \
+ "in_port(2),eth(),eth_type(0x0800),ipv4()" \
+ "sample(sample=100%,actions(psample(group=2,cookie=eeff0c),userspace(pid=${nlpid},userdata=eeff0c))),1"
+
+ # Record psample data.
+ ovs_spawn_daemon "test_psample" python3 $ovs_base/ovs-dpctl.py psample-events
+ ovs_wait grep -q "listening for psample events" ${ovs_dir}/stdout
+
+ # Send a single ping.
+ ovs_sbx "test_psample" ip netns exec client ping -I c1 172.31.110.20 -c 1 || return 1
+
+ # We should have received one userspace action upcall and 2 psample packets.
+ ovs_wait grep -q "userspace action command" $ovs_dir/s0.out || return 1
+
+ # client -> server samples should only contain the first 14 bytes of the packet.
+ ovs_wait grep -qE "rate:4294967295,group:1,cookie:c0ffee data:[0-9a-f]{28}$" \
+ $ovs_dir/stdout || return 1
+
+ ovs_wait grep -q "rate:4294967295,group:2,cookie:eeff0c" $ovs_dir/stdout || return 1
+
+ return 0
+}
+
# drop_reason test
# - drop packets and verify the right drop reason is reported
test_drop_reason() {
which perf >/dev/null 2>&1 || return $ksft_skip
+ which pahole >/dev/null 2>&1 || return $ksft_skip
+
+ ovs_drop_subsys=$(pahole -C skb_drop_reason_subsys |
+ awk '/OPENVSWITCH/ { print $3; }' |
+ tr -d ,)
sbx_add "test_drop_reason" || return $?
@@ -198,6 +355,17 @@ test_drop_reason() {
ip netns exec server ip addr add 172.31.110.20/24 dev s1
ip netns exec server ip link set s1 up
+ # Check if drop reasons can be sent
+ ovs_add_flow "test_drop_reason" dropreason \
+ 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(10)' 2>/dev/null
+ if [ $? == 1 ]; then
+ info "no support for drop reasons - skipping"
+ ovs_exit_sig
+ return $ksft_skip
+ fi
+
+ ovs_del_flows "test_drop_reason" dropreason
+
# Allow ARP
ovs_add_flow "test_drop_reason" dropreason \
'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1
@@ -211,7 +379,7 @@ test_drop_reason() {
"in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop'
ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20
- ovs_drop_reason_count 0x30001 # OVS_DROP_FLOW_ACTION
+ ovs_drop_reason_count 0x${ovs_drop_subsys}0001 # OVS_DROP_FLOW_ACTION
if [[ "$?" -ne "2" ]]; then
info "Did not detect expected drops: $?"
return 1
@@ -228,7 +396,7 @@ test_drop_reason() {
ovs_drop_record_and_run \
"test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000
- ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR
+ ovs_drop_reason_count 0x${ovs_drop_subsys}0004 # OVS_DROP_EXPLICIT_ACTION_ERROR
if [[ "$?" -ne "1" ]]; then
info "Did not detect expected explicit error drops: $?"
return 1
@@ -236,7 +404,7 @@ test_drop_reason() {
ovs_drop_record_and_run \
"test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000
- ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION
+ ovs_drop_reason_count 0x${ovs_drop_subsys}0003 # OVS_DROP_EXPLICIT_ACTION
if [[ "$?" -ne "1" ]]; then
info "Did not detect expected explicit drops: $?"
return 1
@@ -454,6 +622,67 @@ test_nat_connect_v4 () {
return 0
}
+# nat_related_v4 test
+# - client->server ip packets go via SNAT
+# - client solicits ICMP destination unreachable packet from server
+# - undo NAT for ICMP reply and test dst ip has been updated
+test_nat_related_v4 () {
+ which nc >/dev/null 2>/dev/null || return $ksft_skip
+
+ sbx_add "test_nat_related_v4" || return $?
+
+ ovs_add_dp "test_nat_related_v4" natrelated4 || return 1
+ info "create namespaces"
+ for ns in client server; do
+ ovs_add_netns_and_veths "test_nat_related_v4" "natrelated4" "$ns" \
+ "${ns:0:1}0" "${ns:0:1}1" || return 1
+ done
+
+ ip netns exec client ip addr add 172.31.110.10/24 dev c1
+ ip netns exec client ip link set c1 up
+ ip netns exec server ip addr add 172.31.110.20/24 dev s1
+ ip netns exec server ip link set s1 up
+
+ ip netns exec server ip route add 192.168.0.20/32 via 172.31.110.10
+
+ # Allow ARP
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "in_port(1),eth(),eth_type(0x0806),arp()" "2" || return 1
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "in_port(2),eth(),eth_type(0x0806),arp()" "1" || return 1
+
+ # Allow IP traffic from client->server, rewrite source IP with SNAT to 192.168.0.20
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=172.31.110.20)" \
+ "ct(commit,nat(src=192.168.0.20)),recirc(0x1)" || return 1
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" \
+ "2" || return 1
+
+ # Allow related ICMP responses back from server and undo NAT to restore original IP
+ # Drop any ICMP related packets where dst ip hasn't been restored back to original IP
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \
+ "ct(commit,nat),recirc(0x2)" || return 1
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,dst=172.31.110.10,proto=1),icmp()" \
+ "1" || return 1
+ ovs_add_flow "test_nat_related_v4" natrelated4 \
+ "recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20,proto=1),icmp()" \
+ "drop" || return 1
+
+ # Solicit destination unreachable response from server
+ ovs_sbx "test_nat_related_v4" ip netns exec client \
+ bash -c "echo a | nc -u -w 1 172.31.110.20 10000"
+
+ # Check to make sure no packets matched the drop rule with incorrect dst ip
+ python3 "$ovs_base/ovs-dpctl.py" dump-flows natrelated4 \
+ | grep "drop" | grep "packets:0" >/dev/null || return 1
+
+ info "done..."
+ return 0
+}
+
# netlink_validation
# - Create a dp
# - check no warning with "old version" simulation
@@ -483,9 +712,22 @@ test_netlink_checks () {
wc -l) == 2 ] || \
return 1
+ info "Checking clone depth"
ERR_MSG="Flow actions may not be safe on all matching packets"
PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
ovs_add_flow "test_netlink_checks" nv0 \
+ 'in_port(1),eth(),eth_type(0x800),ipv4()' \
+ 'clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(drop)))))))))))))))))' \
+ >/dev/null 2>&1 && return 1
+ POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
+
+ if [ "$PRE_TEST" == "$POST_TEST" ]; then
+ info "failed - clone depth too large"
+ return 1
+ fi
+
+ PRE_TEST=$(dmesg | grep -c "${ERR_MSG}")
+ ovs_add_flow "test_netlink_checks" nv0 \
'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \
&> /dev/null && return 1
POST_TEST=$(dmesg | grep -c "${ERR_MSG}")
@@ -505,7 +747,8 @@ test_upcall_interfaces() {
ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \
172.31.110.1/24 -u || return 1
- sleep 1
+ ovs_wait grep -q "listening on upcall packet handler" ${ovs_dir}/left0.out
+
info "sending arping"
ip netns exec upc arping -I l0 172.31.110.20 -c 1 \
>$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr
@@ -514,21 +757,98 @@ test_upcall_interfaces() {
return 0
}
+ovs_add_kernel_tunnel() {
+ local sbxname=$1; shift
+ local ns=$1; shift
+ local tnl_type=$1; shift
+ local name=$1; shift
+ local addr=$1; shift
+
+ info "setting up kernel ${tnl_type} tunnel ${name}"
+ ovs_sbx "${sbxname}" ip -netns ${ns} link add dev ${name} type ${tnl_type} $* || return 1
+ on_exit "ovs_sbx ${sbxname} ip -netns ${ns} link del ${name} >/dev/null 2>&1"
+ ovs_sbx "${sbxname}" ip -netns ${ns} addr add dev ${name} ${addr} || return 1
+ ovs_sbx "${sbxname}" ip -netns ${ns} link set dev ${name} mtu 1450 up || return 1
+}
+
+test_tunnel_metadata() {
+ which arping >/dev/null 2>&1 || return $ksft_skip
+
+ sbxname="test_tunnel_metadata"
+ sbx_add "${sbxname}" || return 1
+
+ info "setting up new DP"
+ ovs_add_dp "${sbxname}" tdp0 -V 2:1 || return 1
+
+ ovs_add_netns_and_veths "${sbxname}" tdp0 tns left0 l0 \
+ 172.31.110.1/24 || return 1
+
+ info "removing veth interface from openvswitch and setting IP"
+ ovs_del_if "${sbxname}" tdp0 left0 || return 1
+ ovs_sbx "${sbxname}" ip addr add 172.31.110.2/24 dev left0 || return 1
+ ovs_sbx "${sbxname}" ip link set left0 up || return 1
+
+ info "setting up tunnel port in openvswitch"
+ ovs_add_if "${sbxname}" "vxlan" tdp0 ovs-vxlan0 -u || return 1
+ on_exit "ovs_sbx ${sbxname} ip link del ovs-vxlan0"
+ ovs_wait ip link show ovs-vxlan0 &>/dev/null || return 1
+ ovs_sbx "${sbxname}" ip link set ovs-vxlan0 up || return 1
+
+ configs=$(echo '
+ 1 172.31.221.1/24 1155332 32 set udpcsum flags\(df\|csum\)
+ 2 172.31.222.1/24 1234567 45 set noudpcsum flags\(df\)
+ 3 172.31.223.1/24 1020304 23 unset udpcsum flags\(csum\)
+ 4 172.31.224.1/24 1357986 15 unset noudpcsum' | sed '/^$/d')
+
+ while read -r i addr id ttl df csum flags; do
+ ovs_add_kernel_tunnel "${sbxname}" tns vxlan vxlan${i} ${addr} \
+ remote 172.31.110.2 id ${id} dstport 4789 \
+ ttl ${ttl} df ${df} ${csum} || return 1
+ done <<< "${configs}"
+
+ ovs_wait grep -q 'listening on upcall packet handler' \
+ ${ovs_dir}/ovs-vxlan0.out || return 1
+
+ info "sending arping"
+ for i in 1 2 3 4; do
+ ovs_sbx "${sbxname}" ip netns exec tns \
+ arping -I vxlan${i} 172.31.22${i}.2 -c 1 \
+ >${ovs_dir}/arping.stdout 2>${ovs_dir}/arping.stderr
+ done
+
+ info "checking that received decapsulated packets carry correct metadata"
+ while read -r i addr id ttl df csum flags; do
+ arp_hdr="arp\\(sip=172.31.22${i}.1,tip=172.31.22${i}.2,op=1,sha="
+ addrs="src=172.31.110.1,dst=172.31.110.2"
+ ports="tp_src=[0-9]*,tp_dst=4789"
+ tnl_md="tunnel\\(tun_id=${id},${addrs},ttl=${ttl},${ports},${flags}\\)"
+
+ ovs_sbx "${sbxname}" grep -qE "MISS upcall.*${tnl_md}.*${arp_hdr}" \
+ ${ovs_dir}/ovs-vxlan0.out || return 1
+ done <<< "${configs}"
+
+ return 0
+}
+
run_test() {
(
tname="$1"
tdesc="$2"
- if ! lsmod | grep openvswitch >/dev/null 2>&1; then
- stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}"
+ if python3 ovs-dpctl.py -h 2>&1 | \
+ grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then
+ stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}"
return $ksft_skip
fi
- if python3 ovs-dpctl.py -h 2>&1 | \
- grep "Need to install the python" >/dev/null 2>&1; then
- stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}"
+ python3 ovs-dpctl.py show >/dev/null 2>&1 || \
+ echo "[DPCTL] show exception."
+
+ if ! lsmod | grep openvswitch >/dev/null 2>&1; then
+ stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}"
return $ksft_skip
fi
+
printf "TEST: %-60s [START]\n" "${tname}"
unset IFS
generated by cgit (git 2.34.1) at 2025-12-25 02:01:58 +0000